/**
* Load an old fashioned GRF file to replace already loaded sprites.
* @param filename The name of the file to open.
* @param index_tlb The offsets of each of the sprites.
* @param file_index The Fio offset to load the file in.
* @return The number of loaded sprites.
*/
static void LoadGrfFileIndexed(const char *filename, const SpriteID *index_tbl, int file_index)
{
uint start;
uint sprite_id = 0;
FioOpenFile(file_index, filename, BASESET_DIR);
DEBUG(sprite, 2, "Reading indexed grf-file '%s'", filename);
byte container_ver = GetGRFContainerVersion();
if (container_ver == 0) usererror("Base grf '%s' is corrupt", filename);
ReadGRFSpriteOffsets(container_ver);
if (container_ver >= 2) {
/* Read compression. */
byte compression = FioReadByte();
if (compression != 0) usererror("Unsupported compression format");
}
while ((start = *index_tbl++) != END) {
uint end = *index_tbl++;
do {
bool b = LoadNextSprite(start, file_index, sprite_id, container_ver);
assert(b);
sprite_id++;
} while (++start <= end);
}
}
/**
* Load an old fashioned GRF file.
* @param filename The name of the file to open.
* @param load_index The offset of the first sprite.
* @param file_index The Fio offset to load the file in.
* @return The number of loaded sprites.
*/
static uint LoadGrfFile(const char *filename, uint load_index, int file_index)
{
uint load_index_org = load_index;
uint sprite_id = 0;
FioOpenFile(file_index, filename, BASESET_DIR);
DEBUG(sprite, 2, "Reading grf-file '%s'", filename);
byte container_ver = GetGRFContainerVersion();
if (container_ver == 0) usererror("Base grf '%s' is corrupt", filename);
ReadGRFSpriteOffsets(container_ver);
if (container_ver >= 2) {
/* Read compression. */
byte compression = FioReadByte();
if (compression != 0) usererror("Unsupported compression format");
}
while (LoadNextSprite(load_index, file_index, sprite_id, container_ver)) {
load_index++;
sprite_id++;
if (load_index >= MAX_SPRITES) {
usererror("Too many sprites. Recompile with higher MAX_SPRITES value or remove some custom GRF files.");
}
}
DEBUG(sprite, 2, "Currently %i sprites are loaded", load_index);
return load_index - load_index_org;
}
/**
* Load an old fashioned GRF file to replace already loaded sprites.
* @param filename The name of the file to open.
* @param index_tlb The offsets of each of the sprites.
* @param file_index The Fio offset to load the file in.
* @return The number of loaded sprites.
*/
static void LoadGrfFileIndexed(const char *filename, const SpriteID *index_tbl, int file_index)
{
uint start;
uint sprite_id = 0;
FioOpenFile(file_index, filename, BASESET_DIR);
DEBUG(sprite, 2, "Reading indexed grf-file '%s'", filename);
while ((start = *index_tbl++) != END) {
uint end = *index_tbl++;
do {
bool b = LoadNextSprite(start, file_index, sprite_id);
assert(b);
sprite_id++;
} while (++start <= end);
}
}
/**
* Load an old fashioned GRF file.
* @param filename The name of the file to open.
* @param load_index The offset of the first sprite.
* @param file_index The Fio offset to load the file in.
* @return The number of loaded sprites.
*/
static uint LoadGrfFile(const char *filename, uint load_index, int file_index)
{
uint load_index_org = load_index;
uint sprite_id = 0;
FioOpenFile(file_index, filename, BASESET_DIR);
DEBUG(sprite, 2, "Reading grf-file '%s'", filename);
while (LoadNextSprite(load_index, file_index, sprite_id)) {
load_index++;
sprite_id++;
if (load_index >= MAX_SPRITES) {
usererror("Too many sprites. Recompile with higher MAX_SPRITES value or remove some custom GRF files.");
}
}
DEBUG(sprite, 2, "Currently %i sprites are loaded", load_index);
return load_index - load_index_org;
}
